C. How can you use these results to define aº where a = 0?

i think it will be zero as slope has a formula of difference between initial and final distance divided by itz time interval

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh